Index: sources/gui/qml/components/GridSelection.qml
===================================================================
diff -u -r656c8ece0af7d784f545535ee1ccf9bb0e43cd63 -r9b99693be1aaf7306272f37e614b52c7085bcf44
--- sources/gui/qml/components/GridSelection.qml	(.../GridSelection.qml)	(revision 656c8ece0af7d784f545535ee1ccf9bb0e43cd63)
+++ sources/gui/qml/components/GridSelection.qml	(.../GridSelection.qml)	(revision 9b99693be1aaf7306272f37e614b52c7085bcf44)
@@ -49,11 +49,16 @@
 
     signal clicked(int vIndex)
 
-    function reset() {
+    function clear() {
         _root.curIndex = -1
         _root.active   = false
     }
 
+    function reset(vIndex) {
+        _root.curIndex = vIndex
+        _root.active   = true
+    }
+
     Text { id           : _title
         text            : ""
         color           : _root.valid ? Colors.textMain : Colors.createTreatmentInvalidParam
Index: sources/gui/qml/components/SliderCreateTreatment.qml
===================================================================
diff -u -r1a9eb2756f33ec0387dd360e5c051ed9a04b9c1c -r9b99693be1aaf7306272f37e614b52c7085bcf44
--- sources/gui/qml/components/SliderCreateTreatment.qml	(.../SliderCreateTreatment.qml)	(revision 1a9eb2756f33ec0387dd360e5c051ed9a04b9c1c)
+++ sources/gui/qml/components/SliderCreateTreatment.qml	(.../SliderCreateTreatment.qml)	(revision 9b99693be1aaf7306272f37e614b52c7085bcf44)
@@ -27,6 +27,8 @@
 Rectangle { id: _root
     property Flickable flickable: null
 
+    property var    toggleSwich : null // it is the treatment slider custom Switch bu it will be defined outside of this component and the var type would suffice.
+
     property bool   adjustable  : true
     property alias  label       : _label.text
     property alias  decimal     : _slider.decimal
@@ -54,6 +56,15 @@
 
     anchors.horizontalCenter: parent.horizontalCenter
 
+    function clear() {
+        reset(defaultValue)
+        active = false
+        if ( toggleSwich ) {
+            toggleSwich.checked = false
+            toggleSwich.active  = false
+        }
+    }
+
     function reset(vValue) {
         _slider.reset(vValue)
     }
Index: sources/gui/qml/pages/MainStack.qml
===================================================================
diff -u -r689177edf29dee6f10bebfed42f6bbadeb7ce8a8 -r9b99693be1aaf7306272f37e614b52c7085bcf44
--- sources/gui/qml/pages/MainStack.qml	(.../MainStack.qml)	(revision 689177edf29dee6f10bebfed42f6bbadeb7ce8a8)
+++ sources/gui/qml/pages/MainStack.qml	(.../MainStack.qml)	(revision 9b99693be1aaf7306272f37e614b52c7085bcf44)
@@ -156,7 +156,8 @@
         function onStandbyWaitTreatmentChanged  ( vValue ) { /* It depends on the subModes of the standBy. Handled by onHome.  */   }
         function onStandbyWaitDisinfectChanged  ( vValue ) { page( _disinfectStack                  , vValue    )}
 
-        function onValidateParametersChanged    ( vValue ) { page( _preTreatmentCreateStack         , vValue    )}
+        function onValidateParametersChanged    ( vValue ) {       _preTreatmentCreateStack         . clear    ()
+                                                             page( _preTreatmentCreateStack         , vValue    )}
         function onPreTreatmentChanged          ( vValue ) { page( _preTreatmentStack               , vValue    )}
         function onInTreatmentChanged           ( vValue ) { page( _treatmentStack                  , vValue    )}
         function onPostTreatmentChanged         ( vValue ) { page( _postTreatmentStack              , vValue    )}
Index: sources/gui/qml/pages/pretreatment/create/PreTreatmentCreate.qml
===================================================================
diff -u -r656c8ece0af7d784f545535ee1ccf9bb0e43cd63 -r9b99693be1aaf7306272f37e614b52c7085bcf44
--- sources/gui/qml/pages/pretreatment/create/PreTreatmentCreate.qml	(.../PreTreatmentCreate.qml)	(revision 656c8ece0af7d784f545535ee1ccf9bb0e43cd63)
+++ sources/gui/qml/pages/pretreatment/create/PreTreatmentCreate.qml	(.../PreTreatmentCreate.qml)	(revision 9b99693be1aaf7306272f37e614b52c7085bcf44)
@@ -74,7 +74,59 @@
         _flickable.contentY = vItem.mapToItem(_flickable.contentItem, 0, 0).y
     }
 
+    function clear() {
+        _bloodFlowRate          .clear()
+        _dialysateFlowRate      .clear()
+        _duration               .clear()
+        _heparinDispensingRate  .clear()
+        _heparinBolusVolume     .clear()
+        _heparinStopTime        .clear()
+        _salineBolus            .clear()
+        _heparinType            .clear()
+        _acidConcentrate        .clear()
+        _bicarbonateConcentrate .clear()
+        _dialyzerType           .clear()
+        _dialysateTemperature   .clear()
+        _bloodPressureInterval  .clear()
+    }
 
+    property bool prepopulated: false
+    function prepopulate() {
+        // not complete yet and not part of the current DNBUG
+        // the issue is the On/Off switches whcih has not been stored in the view to restore/prepopulate it,
+        // which is needed for three sliders to be set properly.
+        _bloodFlowRate          .reset(vTreatmentCreate.bloodFlowRate                   )
+        _dialysateFlowRate      .reset(vTreatmentCreate.dialysateFlowRate               )
+        _duration               .reset(vTreatmentCreate.treatmentDuration               )
+        _heparinDispensingRate  .reset(vTreatmentCreate.heparinDispensingRate           )
+        _heparinBolusVolume     .reset(vTreatmentCreate.heparinBolusVolume              )
+        _heparinStopTime        .reset(vTreatmentCreate.heparinStopTime                 )
+        _salineBolus            .reset(vTreatmentCreate.salineBolusVolume               )
+        _heparinType            .reset(vTreatmentCreate.heparinType                     )
+        _acidConcentrate        .reset(vTreatmentCreate.acidConcentrate                 )
+        _bicarbonateConcentrate .reset(vTreatmentCreate.bicarbonateConcentrate          )
+        _dialyzerType           .reset(vTreatmentCreate.heparinType                     )
+        _dialysateTemperature   .reset(vTreatmentCreate.dialysateTemp                   )
+        _bloodPressureInterval  .reset(vTreatmentCreate.bloodPressureMeasureInterval    )
+    }
+
+    ConfirmButton { id : _prepopulateButton
+        objectName          : "_prepopulateButton"
+        text.text           : prepopulated ? qsTr("RESET") : qsTr("PREPOPULATE")
+        anchors.top         : title.top
+        anchors.topMargin   : 0
+        visible             : false // true // not readu yet and has been hidded.
+        onClicked           : {
+            if ( prepopulated ) {
+                clear()
+            }
+            else {
+                prepopulate()
+            }
+            prepopulated = ! prepopulated
+        }
+    }
+
     ScrollBar {
         flickable   : _flickable
         anchors.fill: _flickable
@@ -216,6 +268,7 @@
                 //            ToDo: create a component for Switch,
                 //            ToDo: Consider putting the new CheckBox component into the SliderCreateTreatment component and set via boolean property
                 //            This is a full implementation of a Switch
+                toggleSwich: _heparinDispensingRateSwitch
                 Switch { id: _heparinDispensingRateSwitch
                     property bool active: false
                     onCheckedChanged: {
@@ -295,6 +348,7 @@
                 //            ToDo: create a component for this,
                 //            ToDo: Consider putting the new CheckBox component into the SliderCreateTreatment component and set via boolean property
                 //            This is a full implementation of a CheckBox
+                toggleSwich: _heparinBolusVolumeSwitch
                 Switch { id: _heparinBolusVolumeSwitch
                     property bool active: false
                     onCheckedChanged: {
@@ -408,7 +462,7 @@
                 onEnabledChanged: {
                     if ( ! enabled ) {
                         vTreatmentCreate.heparinTypeSet = false
-                        reset()
+                        clear()
                     }
                 }
 
@@ -749,6 +803,7 @@
                 //            ToDo: create a component for this,
                 //            ToDo: Consider putting the new CheckBox component into the SliderCreateTreatment component and set via boolean property
                 //            This is a full implementation of a CheckBox
+                toggleSwich: _bloodPressureIntervalSwitch
                 Switch { id: _bloodPressureIntervalSwitch
                     property bool active: false
                     onCheckedChanged: {
Index: sources/gui/qml/pages/pretreatment/create/PreTreatmentCreateStack.qml
===================================================================
diff -u -r656c8ece0af7d784f545535ee1ccf9bb0e43cd63 -r9b99693be1aaf7306272f37e614b52c7085bcf44
--- sources/gui/qml/pages/pretreatment/create/PreTreatmentCreateStack.qml	(.../PreTreatmentCreateStack.qml)	(revision 656c8ece0af7d784f545535ee1ccf9bb0e43cd63)
+++ sources/gui/qml/pages/pretreatment/create/PreTreatmentCreateStack.qml	(.../PreTreatmentCreateStack.qml)	(revision 9b99693be1aaf7306272f37e614b52c7085bcf44)
@@ -50,7 +50,15 @@
               _pretreatmentPatientID.setFocus()
     }
 
+    function clear() {
+        _pretreatmentPatientID.clear()
+        _pretreatmentCreate.clear()
+    }
+
     PreTreatmentBase            { id:       _pretreatmentPatientID
+        function clear() {
+            vTreatmentCreate.patientID = ""
+        }
 
         function setFocus() {
             _pretreatmentPatientIDEntry.textInput.forceActiveFocus()